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- Question
Gases in the atmosphere and their percentages?
- Correct Answer
- The air around us is a mixture of gases, mainly nitrogen and oxygen, but containing much smaller amounts of water and other gases Earth's atmosphere is composed of many gases Their percentages by volume is given by:: 78% Nitrogen, 21% Oxygen, 09% Argon, and 003% Carbon dioxide And very small percentages of other elements
- 1. What natural factors contribute to global climate?
Options- A. Forest Fires
- B. Solar Activity
- C. Melting Permafrost
- D. All the above Discuss
- 2. What type of bone is a phalanx?
Options- A. Short bones
- B. Joints
- C. Long bones
- D. None of the above Discuss
- 3. What is the major monosaccharide found in the body?
Options- A. Galactose
- B. Sucrose
- C. Fructose
- D. Glucose Discuss
- 4. Which of the following is not a macronutrient?
Options- A. Carbohydrates
- B. Calcium
- C. Chlorine
- D. Proteins Discuss
- 5. Consumers that eat both plants and animals are
Options- A. Carnivores
- B. Herbivores
- C. Omnivores
- D. Tertiary consumers Discuss
- 6. Which of the following is a chemical property?
Options- A. Reactivity
- B. Solubility
- C. Density
- D. All of the above Discuss
- 7. Which of these is a starting point for primary succession?
Options- A. a surface exposed by a retreating glacier
- B. a neglected yard
- C. abandoned farmland
- D. an abandoned city Discuss
- 8. The closest algal relatives of land plants are
Options- A. charophytes
- B. chrysophytes
- C. rhodophytes
- D. bacillariophytes Discuss
- 9. Which molecules prevent cell membranes from dissolving in water?
Options- A. Phospholipids
- B. Fattyacids
- C. Adenosine triphosphates
- D. None of the above Discuss
- 10. Which of the following is a healthy blood pressure level?
Options- A. 120/80 mmHg
- B. 140/90 mmHg
- C. 90/60 mmHg
- D. 120/140 mmHg Discuss
General Science problems
Search Results
Correct Answer: All the above
Explanation:
Global warming is the increase in the earth?s average temperature due to release of several greenhouse gases to the atmosphere by humans. Global warming is affecting many parts of the world.
Natural Causes include :
1. Solar Activity
2. Melting Permafrost
3. Forest Fires
Human made causes include :
1. Deforestation
2. Overpopulation
3. Landfills
4. Mining
5. Fertilizer Use
Correct Answer: Long bones
Explanation:
The phalanges or a phalanx are/is digital bones in the hands and feet of most vertebrates. In primates, the thumbs and big toes have two phalanges while the other digits have three phalanges. The phalanges are classed as long bones.
Correct Answer: Glucose
Explanation:
Glucose is the major monosaccharide found in the body. It is absorbed directly into the bloodstream duringdigestion and a vital carbohydrate as it is a source of energy.
Correct Answer: Chlorine
Explanation:
Nutrients that are needed in large amounts are called Macronutrients.
There are three macronutrients required by humans:
1. carbohydrates (sugar),
2. lipids (fats), and
3. proteins.
Each of these macronutrients provides energy in the form of calories.
Some other macronutrients are: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), sulfur (S), magnesium (Mg), sodium (Na).
Correct Answer: Omnivores
Explanation:
An omnivore is an animal that eats food from both plants and animals.
Animals that eat other animals are called carnivores. Carnivores that eat herbivores are called secondary consumers, and carnivores that eat other carnivores are called tertiary consumers.
Correct Answer: Reactivity
Explanation:
The ability of two or more substances to combine to form other substances is called Reactivity.
Correct Answer: a surface exposed by a retreating glacier
Explanation:
Primary succession is the orderly and predictable series of events through which a stable ecosystem forms in a previously uninhabited region. Primary succession occurs in regions characterized by the absence of soil and living organisms.
Correct Answer: charophytes
Explanation:
The charophytes are the extant group of green algae that are most closely related to modern land plants.
Correct Answer: Phospholipids
Explanation:
Cell membranes are made up of phospholipids which prevents them from dissolving in water.
Correct Answer: 120/80 mmHg
Explanation:
Healthy blood pressure ranges from 120/80 to 90/60.
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